Exact same setup as you. My barrel length is 21" not sure yours?
I shot the Federal tss 9s, 2.25 oz.
Got 330 in 10 in and 314 in 20. Total 644 or 80%.
Just polished my barrel. Interested to see what that does, and warmer weather.
![](https://uploads.tapatalk-cdn.com/20180317/7d4976be3e3d38eae12abedbac225583.jpg)
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